129118720

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1681

約数の個数: 80

約数和(自身を含む): 319765248

約数和(自身を除く): 190646528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1627, 1984, 2480, 2560, 3254, 3968, 4960, 6508, 7936, 8135, 9920, 13016, 15872, 16270, 19840, 26032, 32540, 39680, 50437, 52064, 65080, 79360, 100874, 104128, 130160, 201748, 208256, 252185, 260320, 403496, 416512, 504370, 520640, 806992, 833024, 1008740, 1041280, 1613984, 2017480, 2082560, 3227968, 4034960, 4165120, 6455936, 8069920, 12911872, 16139840, 25823744, 32279680, 64559360, 129118720]

約数ペア:

[(1, 129118720), (2, 64559360), (4, 32279680), (5, 25823744), (8, 16139840), (10, 12911872), (16, 8069920), (20, 6455936), (31, 4165120), (32, 4034960), (40, 3227968), (62, 2082560), (64, 2017480), (80, 1613984), (124, 1041280), (128, 1008740), (155, 833024), (160, 806992), (248, 520640), (256, 504370), (310, 416512), (320, 403496), (496, 260320), (512, 252185), (620, 208256), (640, 201748), (992, 130160), (1240, 104128), (1280, 100874), (1627, 79360), (1984, 65080), (2480, 52064), (2560, 50437), (3254, 39680), (3968, 32540), (4960, 26032), (6508, 19840), (7936, 16270), (8135, 15872), (9920, 13016)]